gyazmail

Install command: 
brew install --cask gyazmail

Name: GyazMail

Email client

http://gyazsquare.com/gyazmail/

/api/cask/gyazmail.json (JSON API)

Cask code on GitHub

Current version: 1.6.5

Analytics:

Installs (30 days)
gyazmail 1
Installs (90 days)
gyazmail 6
Installs (365 days)
gyazmail 17
Fork me on GitHub